Unit of competency Outline

Date retreived
23/07/2026 12:13 AM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Apply surface coatings to ophthalmic lenses

Apply surface coatings to ophthalmic lenses

Unit of competency
National Code
HLTOPT407C
State Code
WD236
TGA Status
Replaced
DTWD Status
Deleted
Current Release Number
1.00
Current Release Date
07/05/2012
State Implementation and Classification
Approved Date
19/07/2012
Field of Education
060903 - Optical Technology
Original Release Date
19/07/2012
Nominal Hours
75
Description
DescriptorThis unit of competency describes the skills and knowledge required to apply hard and multi coating to ophthalmic lenses
Notes
Elements and Performance Criteria
1. Check quality of lens
  • 1.1 Ensure quality of lens surface
  • 1.2 Ensure optical quality of lens is within acceptable tolerances
  • 1.3 Ensure lens complies with prescription needs and fitting criteria of prescription
2. Apply clean-room practices
  • 2.1 Ensure appropriate clean-room practices and procedures are implemented
  • 2.2 Identify and remedy unwanted contaminants in clean-room area
  • 2.3 Identify compliance of wearing appropriate personal protective equipment
3. Apply dirty-room practices
  • 3.1 Ensure all solvents, acids and cleaning products are labelled in compliance with OH&S criteria and Material Data Safety Sheets
  • 3.2 Recognise 'hazards' and address relevant hazardous situations appropriately
  • 3.3 Ensure all safety practices are complied with in ordering, use, handling and storage of solvents, acids and cleaning products
  • 3.4 Ensure all legislative and environmental regulations are adhered to in the disposal of solvents, acids and cleaning products
  • 3.5 Ensure use of appropriate PPEs within the dirty-room environment
4. Identify type of coating
  • 4.1 Interpret lens order
  • 4.2 Arrange appropriate scheduling for batch coating processing
  • 4.3 Select appropriate coating process
5. Apply coating to lenses
  • 5.1 Prepare lens for coating, ensuring holding apparatus will not interfere with quality of coating
  • 5.2 Apply hard and/or primer coating to specifications
  • 5.3 Cure lens coating according to manufacturers' recommendations
  • 5.4 Complete all quality checks on substratum ensuring compliance to needs of vacuum deposition process
  • 5.5 Apply vacuum coating
6. Check coating finish
  • 6.1 Check light transmission of coating in line with manufacturer/suppliers recommendations and/or organisational policies and procedure
  • 6.2 Check lens surface in line with manufacturer/ supplier recommendations and/or organisation policies and procedure
  • 6.3 Check surface quality in line with manufacturer/ supplier recommendations and or organisation policies and procedure
7. Despatch lens
  • 7.1 Package lens in order that no lens wastage occurs
  • 7.2 Despatch lens in accordance with the lens order
  • 7.3 Confirm completion of job
RANGE STATEMENT

The Range Statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Add any essential operating conditions that may be present with training and assessment depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts.


Coatings may include:
Anti reflection coatings
Hard coatings
Mirror coatings
Other substratum used in the vacuum deposition process


Appropriate coating process may include but is not limited to:
Lens preparation
Stripping
Thickness control (substratum)
Application of substratum
Batch processing methodologies
Selection of appropriate coating crucible
Selection of correct coating 'stack'


Equipment servicing, maintenance process may include but is not limited to:
Replacement of hard coatings
Vacuum deposition chamber cleaning procedures
Associated equipment cleaning and replacement procedures
Coating crucible replacement .


Vacuum coating process may include:
Hydrophopic coating application
Ultra-sonic cleaning procedures
hangers
solvents
times
Solvent and acid ordering, use, handling, storage and disposal in accordance to appropriate legislative and environmental regulations
Clean-room compliance
Complying with clean-room/PPE practices and procedures


e
The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for this Training Package.

Critical aspects for assessment and evidence required to demonstrate this competency unit:
The individual being assessed must provide evidence of specified essential knowledge as well as skills
Observation of actual or simulated workplace performance is essential for assessment of this unit
Consistency of performance should be demonstrated over the required range of situations relevant to the workplace
Where, for reasons of safety, space, or access to equipment and resources, assessment takes place away from the workplace, the assessment environment should represent workplace conditions as closely as possible


Context of and specific resources for assessment:
Resources essential for assessment include:
access to an optical appliance manufacturing workplace


Method of assessment
Observation in the work place (if possible)
Written assignments/projects or questioning should be used to assess knowledge
Case study and scenario as a basis for discussion of issues and strategies to contribute to best practice


Access and equity considerations:
All workers in the health industry should be aware of access and equity issues in relation to their own area of work
All workers should develop their ability to work in a culturally diverse environment
In recognition of particular health issues facing Aboriginal and Torres Strait Islander communities, workers should be aware of cultural, historical and current issues impacting on health of Aboriginal and Torres Strait Islander people
Assessors and trainers must take into account relevant access and equity issues, in particular relating to factors impacting on health of Aboriginal and/or Torres Strait Islander clients and communities


Related units:
It is recommended that this unit should be assessed in conjunction with or after the following units:
HLTOPT401C Perform technical procedures for the production of ophthalmic appliances
HLTOPT406B Edge and fit ophthalmic appliances
Replaces
State Code National Code Title Type
D8396 HLTOPT407B Apply surface coatings to ophthalmic lenses Unit of competency
State Code National Code Title Type
J194 HLT43712 Certificate IV in Optical Technology Qualification